- ✓Pyrene
- B$DDT$
- CChloral
- DGammaxene
$DDT$ (Dichloro diphenyl trichloroethane) (figure)
$\mathop {\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,O\,} \\
{\,\,\,\,\,\,||} \\
{CC{l_3} - C - H}
\end{array}}\limits_{Chloral} $ $\mathop {{C_6}{H_6}C{l_6}}\limits_{Gam\max ene} $
Maximum chlorine content is present in pyrene.
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The number of hydroxyl groups present in the product $\mathrm{P}$ is______.

$MnO _{4}^{-}+8 H ^{+}+5 e ^{-} \rightarrow Mn ^{2+}+4 H _{2} O$,
$E^{o} _{ Mn ^{2+} / MnO _{4}^{-}}=-1.510 \,V$
$\frac{1}{2} O _{2}+2 H ^{+}+2 e ^{-} \rightarrow H _{2} O$,
$E _{ O _{2} / H _{2} O }^{o}=+1.223 \,V$
Will the permanganate ion, $MnO _{4}^{-}$liberate $O _{2}$ from water in the presence of an acid ?